Inflatable ball chair



FIG. 1 is an upper side and front perspective view of a first embodimentof an inflatable ball chair showing my new design;

FIG. 2 is a lower back and side perspective view thereof;

FIG. 3 is an upper front perspective view thereof;

FIG. 4 is a back elevation view thereof; and,

FIG. 5 is a side elevation view thereof, the opposite side view being amirror image thereof.

The ornamental design for an inflatable ball chair, as shown anddescribed.